Add support for armv7-windows-gnu targets to the clang front end.
Add support for armv7-windows-gnu targets to the clang front end.

http://reviews.llvm.org/D11071

Patch by Martell Malone
Reviewed by Reid Kleckner



git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@242292 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang